readyState of type
Returns the status of the text track.
Possible values include:
NONE (0): The
TextTrackhas been declared (with corresponding markup element) but is not yet loaded
LOADING (1): The
TextTrackis currently loading
TextTrackhas been loaded
TextTrackfailed to load. Possible causes are a bad URL or unknown text format.
Available only in IE10 Mode, IE11 Mode, and EdgeHTML Mode (All Versions).
The readyState attribute extends the TextTrack interface.